What is the difference between an object's scope and its context in javascript?

Question

In the vernacular, scope and context have a lot in common. Which is why I get confused when I read references to both, such as in the quote below from an article on closures:

Scope refers to where variables and functions are accessible, and in what context it is being executed. ( @robertnyman )

As far as I can tell, context is just a reference to an object.

Can someone please explain what exactly is context , as used, for instance, in the jQuery syntax, $(selector, context) . And is an object's scope the same at it's context ?

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Update:

I found this interesting article that talks about both scope and context in JavaScript.

http://www.digital-web.com/articles/scope_in_javascript/

Answer 1

"Context", as used in this jQuery example, is not a JavaScript term. It is just the name of a variable. It is documented with the rest of the jQuery documentation: http://api.jquery.com/jQuery/#selector-context

Answer 2

"context" can mean many things. In the jQuery example you quote it is a reference to a part of the DOM that the selector should be applied to, which has nothing to do with JavaScript contexts.